A rapid response photochromic diarylethene material for rewritable holographic data storage  

作　　者：ZHANG Qi LI JingMing NIU LiHong CHEN ZiHui YANG Lin ZHANG ShiMan CAO LiangCai ZHANG FuShi 

机构地区：[1]Key Laboratory of Organic Photoelectrons & Molecular Engineering of Ministry of Education,Department of Chemistry,Tsinghua University [2]State Key Laboratory of Precision Measurement Technology and Instruments,Tsinghua University

出　　处：《Chinese Science Bulletin》2013年第1期74-78,共5页

基　　金：supported by the National Natural Science Foundation of China (21073105);the National Basic Research Program of China(2007CB808002);the National High Technology Research and Development Program of China (2012AA030306);Tsinghua University Initiative Scientific Research Program (2011Z23149,2011Z02138)

摘　　要：A novel diarylethene,namely 4,5-(2,5-dimethyl thiophene) phthalimide,was synthesized and successfully introduced to rewritable holographic data storage.Upon the alternative illumination of UV and visible light(>400 nm),this compound underwent rapid,reversible inter-conversion between colorless open-ring isomer and yellow-green ring-closed form in both solution and polymethyl methacrylate(PMMA) film.Subsequently,we investigated the characteristics of volume homographic recording of the diarylethene-doped PMMA film(1 m thick).The maximum refractive index modulation(0.87‰) of the film during recording could be reached within just 120 s which gave the ability of fast recording.The high quality reconstruction after 50 write/erase cycles demonstrated its excellent fatigue-resistance and high resolution.All those results indicated that this molecule was a reliable fast write/erase holographic storage material.A novel diarylethene, namely 4,5-（2,5-dimethyl thiophene） phthalimide, was synthesized and successfully introduced to rewritable holographic data storage. Upon the alternative illumination of UV and visible light （2〉400 nm）, this compound underwent rapid, reversible inter-conversion between colorless open-ring isomer and yellow-green ring-closed form in both solution and polymethyl methacrylate （PMMA） film. Subsequently, we investigated the characteristics of volume homographic recording of the diarylethene-doped PMMA film （1 gm thick）. The maximum retractive index moclulataon （o.5/yov） ot me film aurlng recoru- ing could be reached within just 120 s which gave the ability of fast recording. The high quality reconstruction after 50 write/erase cycles demonstrated its excellent fatigue-resistance and high resolution, All those results indicated that this molecule was a reliable fast write/erase holographic storage material.

关 键 词：全息数据存储 全息存储材料 二芳基乙烯 可擦写 光致变色 快速响应 聚甲基丙烯酸甲酯 PMMA 

分 类 号：TP333[自动化与计算机技术—计算机系统结构]